Patents Assigned to Joisten & Kettenbaum GmbH & Co. Joke KG
  • Compressed-air-driven metal working machine
    Patent number: 5662517
    Abstract: A metal working machine which has a tool support on which a rotatable working spindle is mounted which can be acted upon by oil-free compressed driving air. A separate duct provides oil-free compressed braking air which serves to stop the tool support after compressed air to the spindle has been switched off. Additionally, an oil-free mist is provided to the machine via a duct for lubricating the bearings of the tool support.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: September 2, 1997
    Assignee: Joisten & Kettenbaum GmbH & Co. Joke KG
    Inventor: Hans-Werner Trojahn